'Girls Gone Wild' Photo Shoot Raided by LAPD

12/14/2011 3:40 PM PST

'Girls Gone Wild' Photo Shoot Raided by LAPD Officers

LAPD officers just busted into a "Girls Gone Wild" photo shoot in a Hollywood Hills home -- and TMZ has learned it's all because the models might be getting wild on camera ... without a permit.

According to law enforcement sources ... police went to the home to conduct a "film permit investigation" because there's been an ongoing issue of people -- not only GGW -- shooting there without proper permits.

A GGW rep says they have about a dozen staffers -- including requisite girls in bikinis -- at the home shooting their "Search for the Hottest Girl in America."

The rep claims LAPD entered the private residence without a proper warrant or probable cause.

Our law enforcement sources say the investigation is not targeting GGW -- and instead the cops want the person leasing the house and allowing people to shoot there. We're told police have been to the location multiple times over the last year.